PT Journal AU DELPHI Collaboration (Abdallah, Jea Costa, MJ Ferrer, A Fuster, J Garcia, C Oyanguren, A Perepelitsa, V Salt, J Tortosa, P TI Search for single top quark production via contact interactions at LEP2 SO European Physical Journal C JI Eur. Phys. J. C PY 2011 BP 1555 - 13pp VL 71 IS 2 DI 10.1140/epjc/s10052-011-1555-z LA English AB Single top quark production via four-fermion contact interactions associated to flavour-changing neutral currents was searched for in data taken by the DELPHI detector at LEP2. The data were accumulated at centre-of-mass energies ranging from 189 to 209 GeV, with an integrated luminosity of 598.1 pb(-1). No evidence for a signal was found. Limits on the energy scale Lambda, were set for scalar-, vector- and tensor-like coupling scenarios. ER